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HDTV (High-Definition Television) offers a clearer and more detailed picture because it contains more information.
Television pictures are made up of many dots or picture elements (pixels) that form the image you see, therefore by using more of these pixels, in a high-definition (HD) transmission a more clear and sharp image is available.
Normally, an HD signal can contain up to around five times the information compared to standard definition (SD) in terms of the number of pixels used. SD signals are made up of approximately 500-600 horizontal lines of pixels depending on transmission system used, whereas HD transmissions use at least 700 to around 1000 lines.

1080i and 1080p? What do both i and p mean?

These formats indicate the number of horizontal lines the transmission format uses along (denoted by the number) and the picture display method being used (indicated by the letter.
i stands for Interlaced
p stands for Progressive Scan

Why 1080p is theoretically better than 1080i ?

Basically, 1080i -- the former king of the HDTV hill, actually boasts an identical 1,920x1,080 pixels resolution but conveys the images in an interlaced (i) format (the i in 1080i). In a tube-based television, otherwise known as a CRT, 1080i sources get "painted" on the screen sequentially: the odd-numbered lines of resolution appear on your screen first, followed by the even-numbered lines--all within 1/30 of a second.



 progressivescan.gif (2.99K)
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An Interlaced Image



While, the Progressive-scan (p) formats such as 480p, 720p, and 1080p(1,920 x 1,080) convey all of the lines of resolution sequentially in a single pass, which makes for a smoother, cleaner image, especially with sports and other motion-intensive content. As opposed to tubes, microdisplays (DLP, LCoS, and LCD rear-projection) and other fixed-pixel TVs, including plasma and LCD flat-panel, are inherently progressive in nature, so when the incoming source is interlaced, as 1080i is, they convert it to progressive scan for display.



 interlaced.gif (3.03K)
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A Progressively Scanned Image

Today's high-def broadcasts are done in either 1080i or 720p, and there's little or no chance they'll jump to 1080p any time soon because of bandwidth issues. There's been a lot of chatter over whether the new breed of high-def movie players, Blu-ray or HD-DVD, as well as the upcoming Sony PlayStation 3, will output in 1080p. Allegedly, they will, but those players and recorders will be very expensive at first (more or nearly $1,000), and they probably won't hit more modest price levels during this year, 2007 or even 2008. The PS3, on the other hand, is designed to be more of a mainstream product; with a fairly price tag in the neighborhood of $599. It’s one of the cheapest Blu-ray player in the recent market.

src:don't remember exactly but had search through one of the search engine.

Google has added new Fade Effect in their google.com.To check out Just go to google.com and slowly move u r mouse on their site.U will see the fade effect .
This is Working in Mozilla but not in IE.
This Change is After google Changed the Textbox Size on their main Page.Google Usually Changes their Logo but this changes they usually do less.Liked it....